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Forum Discussion

madi_56757's avatar
madi_56757
Icon for Nimbostratus rankNimbostratus
Dec 05, 2006

dynamic destination conditioned by dns query

hello all,     I have a question regarding my rule.   I get a lot of IPs of my DNS query and i like to forward my traffic to this addresses, or to one of this address, but not without the tes...
application delivery
dev
devops
iRules
Deb_Allen_18's avatar
Deb_Allen_18
Historic F5 Account
Dec 08, 2006
Just realize the HTTP::retry request syntax isn't correct.

Try this instead:
when HTTP_REQUEST {
  set request [HTTP::request]
  set hostname [getfield [HTTP::host] ":" 1]
  log local0. "Uri - [HTTP::uri]   Hostname - $hostname   Port - [TCP::local_port]"
  HTTP::collect
  NAME::lookup $hostname
}
when NAME_RESOLVED {
  set ip [NAME::response]
  log local0. "IP - >$ip<"
  if {($ip == "")}{
    HTTP::redirect http://host.domain.com/sorry.html
  } else {
    set index 0
    use node [lindex $ip 0] 80
    HTTP::release
  }
}
when LB_FAILED {
  incr index
  if {!([lindex $ip $index] =="")}{
    use node [lindex $ip $index] 80
    HTTP::retry $request
  } else {
    HTTP::redirect http://host.domain.com/sorry.html
  }
}

/deb